Radiator-valve.



M. PEDERSON.

RADIATOR VALVE.

APPLICATION FILED APR. 20, 1916.

1 ,21 9,582. Patented Mar; 20, 1917.

2 SHEETS-SHEET I ZFWE/Wae mr mwms Pzrsns m. micro-Luna WA sums mm a c.

M. PEDERSON.

RADIATOR VALVE. APPLICATION FILED APR-20,1916- Patented Mar. 20, 1917.

2 SHEETS-SHEET 2.

a'rnr anion.

RADIATOR-VALVE.

Specification of Letters Patent.

Patented Mar. 20, 15117.

Application filed April 20, 1916. 1 Serial No. 92,436.

To all wlwmz't may concern Be it known that I, Mivrnrixs Pnnnnson, acitizen of the Unit-ed States, residing at Fargo, in the county of Cassand State of North Dakoh, have invented certain new and usefulImprovements in Radiator- Valves, of which the following is avspecification.-

This invention relates to improvements in vent valves or regulatingvalves for steam radiators and its object is to provide means wherebythe steam in the radiator may be kept below a certain pressure and thetemperature about the radiator kept nearly constant thereby. Theinvention consists in the combination and arrangement of parts to behereinafter fully described in this specification, pointed out in theappended claims and illustrated in the accompanying drawings which forma part of the specification and in which Figure 1 is a side elevation,partly in section, of my improved valve.

Fig. 2 is a cross section on line 22 of Fig. 1.

Fig. 3 is a plan of the lower portion of the valve body, the upperportion and the greater part of the interior being removed.

Fig. 4 is a side elevation, partly in section, with the movable parts inan altered position.

Fig. 5 is an inverted plan view with the base of the valve broken toafford a better illustration.

Fig. 6 is a top plan view of the counterweight employed.

Fig. 7 is a side elevation of the same.

Like reference characters denote corresponding parts throughout theseveral views.

The reference numeral 1 denotes the lower body portion of my valve whichis fed by the steam pipe 2 connected to the radiator (not shown). Thevalve portion 1 is provided with the cap or cover portion 3 which isprovided with the integral neck portion t that serves as a seat for thehead provided with the stem (3 that extends through the centralperforation in the said neck l. The stem 6 is provided at its lower endwith the three radial wings 7 that are provided with pins 8 disposed inthe elongated slotted portions 9 of the bifurcated ends 10 of theangular levers 11 which are pivotally supported, at approximately theirlongitudinal centers, upon the pins 12 carried by the bifurcated lugs 13that depend from the inner surface of the cap or cover 3. The levers 11are also slotted longitudinally as at l i for engagement with the pins15 of bifurcated lugs 16 carried by the dome-shaped float 17, the loweredge or rim of which is a size to snugly fit inside the upper edge ofthe lower body portion of the valve as shown.

Depending from the under surface of the top of the float are thebifurcated lugs 18 that carry pins 19 in engagement with thelongitudinally slotted portions 20 of straight levers 21 fulcrumed uponlugs 22 carried by fingers 23 secured to the inner periphery of thelower body portion of the valve. Each straight lever 21 is connected tothe counterbalance weight 2& which, with the steam at a given pressureor below the same, is suflicient to retain the float in raised relationwith the lower body portion of the valve, thus keeping the head 5 inclose engagement with the neck 1-. hen the steam rises above thepredetermined pressure the float will be raised and the valve head 5,through its connections with said float, moved down upon the neck 4: andthe circulation of the heating medium checked causing the radiator tocool. hen pressure upon the float 17 is reduced the weights will lowerthe float again and raise head 5 permitting uninterrupted circulation.

' hat is claimed is 1. A radiator valve comprising a lower valve bodyportion provided with a steam pipe, a cap fitted to said lower valveportion and provided with a neck, a head adapted for releasableengagement with said neck, a valve stem carried by said head and eX-tending through said neck into said cap, radial arms carried by saidvalve stem, a float movable with relation to said lower valve bodyportion, lugs carried upon the outer periphery of said float, angularlevers suspended from the inner periphery of said cap and connected tosaid lugs and the said radial arms and permitting limited relativemovement of said members; lugs depending from the inner periphery ofsaid float, levers fulcrumed within said float below said lugs andweights terminally carried by said levers.

2. A radiator valve comprising a lower body portion provided with asteam pipe, a cap fitted to said lower valve portion and provided with aneck, a head adapted for releasable engagement with said neck, a stemcarried by said head and extending through said neck, radial armsterminally carried by said stem a float fitted snugly and movably withinthe upper portion of the lower body portion of the valve, lugs carriedby the outer periphery of said float, pivotally supported elementsconnecting said lugs and the said radial arms whereby limited relativemovement of the one with relation to the other is permitted, motionbeyond a fixed limit being transmitted from said lugs to said arms; lugsdepending from the inner periphery of said float, levers fulcrumed insaid lower valve-body portion and pivotally connected to said last namedlugs and 15 In testimony that I claim the foregoing 20 as my OWIl I havehereto affixed my signature 1n the presence of tWo subscribingW1tnesses.

lMATT PEDERSON.

Witnesses:

K. A. MORGAN, HENRY HAMMERMAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

